HUNTA-277 Forced to participate in a "SEX study session" hosted by a woman who just wants to eat virgins? After enrolling in university, I decided to live with my sister who resides in the city. Then, every weekend, she gathers her friends and makes a hug

My younger brother went to a university in the city and started living with his older sister who had moved to Tokyo. However, his sister is an insatiable slut who spends weekends having wild conversations about sex with her slutty friends! When my brother was dragged into their circle and his virginity was exposed… they started a 'sex study session' to pop his cherry! I don't want his precious first time to be taken like this! But he can't stop thrusting because of how good the sex feels for the first time! In the end, all the sluts beg for his dick and he cums all night long!